body {
    width: 960px;
    margin: 0 auto;
    font: 18px/1.8em '微软雅黑';
}

h1 {
    color: green;
}

h2 {
    border-bottom: 2px solid green;
    line-height: 1.8em;
}

p {
    font-size: 20;
    padding: 5px 0;
}

p.content {
    font-weight: normal;
    padding-left: 2em;
    line-height: 1.5em;
    margin: 0;
}